D3D12DDI_VIDEO_ENCODER_CODEC_CONFIGURATION_SUPPORT_HEVC_FLAGS_0083_0 enumeration (d3d12umddi.h)

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The D3D12DDI_VIDEO_ENCODER_CODEC_CONFIGURATION_SUPPORT_HEVC_FLAGS_0083_0 enumeration specifies configuration support flags for HEVC encoding.

Syntax

typedef enum D3D12DDI_VIDEO_ENCODER_CODEC_CONFIGURATION_SUPPORT_HEVC_FLAGS_0083_0 {
  D3D12DDI_VIDEO_ENCODER_CODEC_CONFIGURATION_SUPPORT_HEVC_FLAG_0083_0_NONE,
  D3D12DDI_VIDEO_ENCODER_CODEC_CONFIGURATION_SUPPORT_HEVC_FLAG_0083_0_BFRAME_LTR_COMBINED_SUPPORT,
  D3D12DDI_VIDEO_ENCODER_CODEC_CONFIGURATION_SUPPORT_HEVC_FLAG_0083_0_INTRA_SLICE_CONSTRAINED_ENCODING_SUPPORT,
  D3D12DDI_VIDEO_ENCODER_CODEC_CONFIGURATION_SUPPORT_HEVC_FLAG_0083_0_CONSTRAINED_INTRAPREDICTION_SUPPORT,
  D3D12DDI_VIDEO_ENCODER_CODEC_CONFIGURATION_SUPPORT_HEVC_FLAG_0083_0_SAO_FILTER_SUPPORT,
  D3D12DDI_VIDEO_ENCODER_CODEC_CONFIGURATION_SUPPORT_HEVC_FLAG_0083_0_ASYMETRIC_MOTION_PARTITION_SUPPORT,
  D3D12DDI_VIDEO_ENCODER_CODEC_CONFIGURATION_SUPPORT_HEVC_FLAG_0083_0_ASYMETRIC_MOTION_PARTITION_REQUIRED,
  D3D12DDI_VIDEO_ENCODER_CODEC_CONFIGURATION_SUPPORT_HEVC_FLAG_0083_0_TRANSFORM_SKIP_SUPPORT,
  D3D12DDI_VIDEO_ENCODER_CODEC_CONFIGURATION_SUPPORT_HEVC_FLAG_0083_0_DISABLING_LOOP_FILTER_ACROSS_SLICES_SUPPORT,
  D3D12DDI_VIDEO_ENCODER_CODEC_CONFIGURATION_SUPPORT_HEVC_FLAG_0083_0_P_FRAMES_IMPLEMENTED_AS_LOW_DELAY_B_FRAMES,
  D3D12DDI_VIDEO_ENCODER_CODEC_CONFIGURATION_SUPPORT_HEVC_FLAG_0099_0_NUM_REF_IDX_ACTIVE_OVERRIDE_FLAG_SLICE_SUPPORT
} ;

Constants

 
D3D12DDI_VIDEO_ENCODER_CODEC_CONFIGURATION_SUPPORT_HEVC_FLAG_0083_0_NONE
No flags.
D3D12DDI_VIDEO_ENCODER_CODEC_CONFIGURATION_SUPPORT_HEVC_FLAG_0083_0_BFRAME_LTR_COMBINED_SUPPORT
Indicates support for use of B frames and long term references frames simultaneously.
D3D12DDI_VIDEO_ENCODER_CODEC_CONFIGURATION_SUPPORT_HEVC_FLAG_0083_0_INTRA_SLICE_CONSTRAINED_ENCODING_SUPPORT
Indicates support for slice-constrained encoding, in which every slice in a frame is encoded independently from other slices in the same frame. This mode restricts the motion vector search range to the region box of the current slice; that is, motion vectors outside the slice boundary cannot be used.
D3D12DDI_VIDEO_ENCODER_CODEC_CONFIGURATION_SUPPORT_HEVC_FLAG_0083_0_CONSTRAINED_INTRAPREDICTION_SUPPORT
Indicates support for constrained intra-prediction that, if activated, will force the encoding of each intra-coded block with residual data only from other intra-coded blocks (and not from inter-coded blocks). This flag refers to constrained_intra_pred_flag in the picture parameter set (PPS).
D3D12DDI_VIDEO_ENCODER_CODEC_CONFIGURATION_SUPPORT_HEVC_FLAG_0083_0_SAO_FILTER_SUPPORT
Indicates support for sample adaptive offset.
D3D12DDI_VIDEO_ENCODER_CODEC_CONFIGURATION_SUPPORT_HEVC_FLAG_0083_0_ASYMETRIC_MOTION_PARTITION_SUPPORT
Indicates support for asymmetric motion partition.
D3D12DDI_VIDEO_ENCODER_CODEC_CONFIGURATION_SUPPORT_HEVC_FLAG_0083_0_ASYMETRIC_MOTION_PARTITION_REQUIRED
Indicates that asymmetric motion partition must always be enabled. If this flag is set, D3D12DDI_VIDEO_ENCODER_CODEC_CONFIGURATION_SUPPORT_HEVC_FLAG_0083_0_ASYMETRIC_MOTION_PARTITION_SUPPORT must also be set.
D3D12DDI_VIDEO_ENCODER_CODEC_CONFIGURATION_SUPPORT_HEVC_FLAG_0083_0_TRANSFORM_SKIP_SUPPORT
Indicates support for transform skip.
D3D12DDI_VIDEO_ENCODER_CODEC_CONFIGURATION_SUPPORT_HEVC_FLAG_0083_0_DISABLING_LOOP_FILTER_ACROSS_SLICES_SUPPORT
Indicates support for disabling loop filter across slices.
D3D12DDI_VIDEO_ENCODER_CODEC_CONFIGURATION_SUPPORT_HEVC_FLAG_0083_0_P_FRAMES_IMPLEMENTED_AS_LOW_DELAY_B_FRAMES
Indicates that frames being encoded with type D3D12DDI_VIDEO_ENCODER_FRAME_TYPE_HEVC_0080_P_FRAME will be written as low delay B-frames in the compressed bit stream. If this flag is not set, P frames will be written in the compressed bit stream.

NOTE


>When operating in this mode, it is the caller's responsibility to code the correct frame type in AUD_NUT and other parts of the HEVC bit stream, taking into account that P frames will be treated as generalized B frames with only references to past frames in picture order count (POC) order.
D3D12DDI_VIDEO_ENCODER_CODEC_CONFIGURATION_SUPPORT_HEVC_FLAG_0099_0_NUM_REF_IDX_ACTIVE_OVERRIDE_FLAG_SLICE_SUPPORT
Indicates that the encoder supports overriding the number of active reference indices at the slice level. This allows for more fine-grained control of reference frames used for prediction on a per-slice basis. Added in Windows 11, version 24H2 (WDDM 3.2).

Remarks

See D3D12 video encoding for general information.

Requirements

Requirement Value
Minimum supported client Windows 11 (WDDM 3.0)
Header d3d12umddi.h

See also

D3D12DDI_VIDEO_ENCODER_CODEC_CONFIGURATION_SUPPORT_HEVC_0083_0